6 files changed, 17 insertions, 5 deletions
diff --git a/examples/opengl/doc/src/2dpainting.qdoc b/examples/opengl/doc/src/2dpainting.qdoc
index 934097f38e..5196c78937 100644
--- a/examples/opengl/doc/src/2dpainting.qdoc
+++ b/examples/opengl/doc/src/2dpainting.qdoc
@@ -5,6 +5,7 @@
     \example 2dpainting
     \title 2D Painting Example
     \ingroup examples-widgets-opengl
+    \examplecategory {Graphics}
 
     \brief The 2D Painting example shows how QPainter and QOpenGLWidget can be
     used together to display accelerated 2D graphics on supported hardware.
diff --git a/examples/opengl/doc/src/cube.qdoc b/examples/opengl/doc/src/cube.qdoc
index 1a92985565..d01985701c 100644
--- a/examples/opengl/doc/src/cube.qdoc
+++ b/examples/opengl/doc/src/cube.qdoc
@@ -5,6 +5,7 @@
     \example cube
     \ingroup examples-widgets-opengl
     \title Cube OpenGL ES 2.0 example
+    \examplecategory {3D}
 
     \brief Shows how to manually rotate a textured 3D cube with user input.
 
diff --git a/examples/opengl/doc/src/hellogl2.qdoc b/examples/opengl/doc/src/hellogl2.qdoc
index 3a81b0dfad..29e8ef85cd 100644
--- a/examples/opengl/doc/src/hellogl2.qdoc
+++ b/examples/opengl/doc/src/hellogl2.qdoc
@@ -5,6 +5,7 @@
     \example hellogl2
     \title Hello GL2 Example
     \ingroup examples-widgets-opengl
+    \examplecategory {3D}
 
     \brief The Hello GL2 example demonstrates the basic use of the OpenGL-related classes
     provided with Qt.
diff --git a/examples/opengl/doc/src/hellogles3.qdoc b/examples/opengl/doc/src/hellogles3.qdoc
index c83ecd50f7..d85f40a29f 100644
--- a/examples/opengl/doc/src/hellogles3.qdoc
+++ b/examples/opengl/doc/src/hellogles3.qdoc
@@ -5,6 +5,8 @@
     \example hellogles3
     \title Hello GLES3 Example
     \ingroup examples-widgets-opengl
+    \examplecategory {Graphics}
+    \examplecategory {Mobile}
 
     \brief Demonstrates OpenGL ES 3.0 functions via QOpenGLExtraFunctions.
 
diff --git a/examples/opengl/doc/src/openglwindow.qdoc b/examples/opengl/doc/src/openglwindow.qdoc
index 505ff20fbc..cade2f009a 100644
--- a/examples/opengl/doc/src/openglwindow.qdoc
+++ b/examples/opengl/doc/src/openglwindow.qdoc
@@ -4,6 +4,8 @@
 /*!
     \example openglwindow
     \title OpenGL Window Example
+    \ingroup examples-widgets-opengl
+    \examplecategory {Graphics}
 
     \brief This example shows how to create a minimal QWindow based application
     for the purpose of using OpenGL.
diff --git a/examples/opengl/doc/src/stereoqopenglwidget.qdoc b/examples/opengl/doc/src/stereoqopenglwidget.qdoc
index c4e51f9cee..0cb45b9808 100644
--- a/examples/opengl/doc/src/stereoqopenglwidget.qdoc
+++ b/examples/opengl/doc/src/stereoqopenglwidget.qdoc
@@ -4,9 +4,17 @@
 /*!
     \example stereoqopenglwidget
     \title QOpenGLWidget Stereoscopic Rendering Example
+    \examplecategory {Graphics}
+    \ingroup examples-widgets-opengl
+    \brief This example shows how to create a minimal QOpenGLWidget based
+    application with stereoscopic rendering support.
 
-    \brief This example shows how to create a minimal QOpenGLWidget based application
-    with stereoscopic rendering support.
+    \note Support for stereoscopic rendering has certain hardware requirements,
+    such as, a graphics card with stereo support, 3D glasses and specific
+    monitors.
+
+    \note This example renders two images to two separate buffers. When you
+    view the images through 3D glasses, they give a 3D holographic effect.
 
     \image stereoexample-leftbuffer.png
 
@@ -16,9 +24,6 @@
 
     The above image is what will be rendered to the right buffer.
 
-    \note Support for stereoscopic rendering has certain hardware requirements, like
-    your graphics card needs stereo support.
-
     \section1 Setting the correct surface flag
     To enable stereoscopic rendering you need to set the flag
     QSurfaceFormat::StereoBuffers globally. Just doing it on the widget is not enough